Earlier quoted context omitted.
A couple of decades ago I worked at a company that had about 200 Mac's and a similar number of PC's. One of our favorite practical jokes was to disable the mouse on Mac's. The victim quite literally could not do a thing with the computer until the mouse was re-enabled. In sharp contrast to this most Windows users could function reasonably well without the mouse. This, of course, was a long time ago. My guess is that…
That's like saying you took the pedals out of a car and people couldn't drive, it's to be expected unless they are driving a Flintstone's car.
As a side note, this was also the pre-Google Internet era, with super early Linux (can't even remember the version). I remember using NCSA Mosaic!